Automotive air cleansing device



Aprfi 2, 35= H. B. ANGLEMEYER AUTOMOTIVE AIR CLEANSING DEVICE Original Filed May, 2, 1929 2 Sheets-Sheet 1 Aiwig 9 1935 H. B. ANGLEMEYER 1,996,604

AUTOMOTIVE AIR CLEANSING DEVICE Original Filed May B, 1929 2 Sheets-Sheet 2 (9 6 6/7770 3 (5677/6 hzejar A ttorney Patented Apr. 2, 1935 UNITED STATES 1,996,604 AUTOMOTIVE AIR. CLEANSING nnvrca Herman B. Anglemeyer, Chicago, 111.,

minor,

by direct and mesne assignments, of one-fourth to B. Ohafley Shepard, one-eighth to M. W.

Zander, sixteenth Corporation, Detroit, Michigan one-fourth to A. M. Lichty, oneto Ira H. Van Cleave, to Joseph A. Allard, In, all of and seventeen-eightieths to and one-tenth Pomona, CaliL, Handy Cleaner Mich, a corporation of Application May 2, 1929, Serial No. 359,859 Renewed November 13, 1931 14; Claims.

This invention relates to an improved automo tive appliance which may be conveniently referred to in the art as an air cleansing device, that is, an auxiliary structure which is adapted to cleanse air which is supplied to the carburetor to combine with the fuel charge to enhance the operation of the motor, the appliance being also susceptible of practical usage when associated with air compressors.

The present invention has for its objects the provision of a structure which in its functioning will include any or all of the following features: production of a screen of oil through which the incoming air must pass and which screen acts as an entraining means to capture solid particles such as dirt; directing the air and any oil carried by it through a passage such as to capture oil and return it for further use, the oil being used in a cycle; further cleaning the air of oil and any dirt after leaving the passage; creation of the oil screen by a motive gas enabling the heating of such gas with consequent increase in fluidity of the oil and addition of heat to the air being cleaned.

The specific cooperation of the details of this structure will become more readily apparent as description proceeds.

In the drawings:

Figure 1 is a central vertical sectional view through a cleansing device constructed in accordance with the present invention.

Figure 2 is a similar view, the right angles to that seen in Figure 1.

Figure 3 is a horizontal sectional view on the line 33 of Figure 1.

Figure 4 is a perspective view of the horizontal branch of the exhaust supply tube.

The embodiment of the device shown herein comprises essentially a multiple part casing, one part; namely the body is generally designated by the reference character 5 and is in the form of an open ended cylinder. There is an inturned annular flange at the top with which a cover or cap 6 is connected, and this cap is provided with a clean air discharge elbow I with which a conducting pipe (not shown) is adapted to be connected. This pipe leads to the carburetor (not shown). Telescopically fitted on the lower end portion of the cylinder is an oil cup 8 which contains a limited supply of oil, the normal level of which is designated by the line 9 in Figure 1.

The reference character l0 designates diametrically opposite lugs carrying a swingable retaining bail l l whose bight portions cooperate with a keeper bracket 12 on the bottom of the section being at Q cup as seen in Figure 2. This allows the cup to be removed for providing anew supply of oil.

In the upper portion of this cylinder I provide inclined baiiies l3 and M, respectively. The batfie M is provided with a drain hole 85. Also the baiile i3 is provided with a drain hole it and an inclined return lip ll. These baiiles define a compartment in the upper portion of the cylinder which is adapted to contain a porous absorbent it. The function of this is to permit the oil laden and heated air to permeate the absorbent material before itpasse's out through the clean air discharge elbow 1. This also separates the oil from the air and permits it to drain back into the cup 8. The reference character it merely designates a supporting band or flap which em braces the casing in the manner shown.

The screening and mixing chamber is generally designated by the reference character 20 and comprises a hollow box-like structure of the pe culiar configuration seen in Figures 1 and 2. It comprises a front wall 2| with which the atmospheric air inlet 22 is connected. Then there are spaced parallel side walls 23 having notches 24 in their lower edges. There is a rear wall 25 having a curved lower end 26 and a similarly curved upper end or crown portion 21. In addition there is a curvate web 28 and these parts iii cooperate in producing a sinuous or tortuous passage for the incoming air.

It is to be observed in Figure 2 that the screening chamber 20 is of general rectangular configuration and is centralized within the body portion of the casing being bounded at the bottom a by the oil in cup 8. Thus, the top of the oil'extends on opposite sides of the walls of the chamber and this is of advantage in that the accumulated dirt particles are allowed to be swept to the side and to maintain that portion of the oil surface at the center substantially clean. The cup 8 serves as a sump and settling chamber wherein dirt may settle out of the returned oil.

I next call attention to the hot air supply device, this comprising a substantially L-shaped tube having a vertical branch 29 and a. horizontal branch 30. The vertical branch is provided with a coupling as at 3| to permit additional piping to be connected therewith and to be extended to the exhaust manifold (not shown) to receive a supply of hot gas therefrom.

The reference character 32 designates an elongated discharge slot in branch 30 which is disposed between the side walls of the screening chamber and below the oil level as seen in Figure 1. This exhaust tube arrangement is important in that it permits the utilization of a pressure method employed in raising the oil for spraying purpose and forming the oil screen. The exhaust gases under pressure liftthe oil and in this way I do not depend on the velocity of the incoming atmospheric air and suction from the motor to lift the oil. The hot gases exhausting through the oil spray not only lift the oil but heat it at the same time, keeping the oil at a temperature desirable for spraying purposes.

In operation, the atmospheric air enters through the air intake 22 where it flows into screening chamber 20. Here it passes through the oil spray or film of oil which is thrown up into the mixer, the oil being lifted by the exhaust gases and tube arrangement already described.

Thus the foreign matter is deposited in the oil. The air passes through the chamber andthrough the absorbent containing and cleansing cham bers through the outlets and off through the carburetor. The oil returns to the lower chamber in the cup 8 through the openings l5 and I6 as well as by way of a vertical channel as seen in Figure l. As before stated within the upper chamber is the filtering wad of material of appropriate texture. This is of a porous nature and allows the air to pass upwardly and thence on through, which removes the fine oil particles from the cleansed air. The oil is then returned through the passages already described.

The exhaust gases agitating the oil in the center of the oil screening chamber allows the foreign matter to settle at the outer edges of the bottom of the lower chamber which is a very desirable feature in this invention. The exhaust gases passing through the oil spray tube into the oil contained in the lower cup or chamber heats the oil and keeps it at a uniform temperature desirable for spraying purposes. It also warms the air and making the motor more economical on gasoline.

The peculiar configuration of the screening chamber with its tortuous passage as well as the centralized arrangement thereof in the casing is a point of merit to be emphasized. This in conjunction with the exhaust supply tube and the heating and bubbling arrangement as well as the oil return means enhances the operation of the device, making it modernized and susceptible of fulfilling the requirements of an invention of this class in a more satisfactory and practicable manner. The screening chamber also serves as a separating chamber due to the tortuous passage and walls. The heavier particles of oil and entrained dirt are projected due to their inertia to the outer sides of the turns and lodge against the walls running down thereover in a film to the sump cup 8 where the dirt settles. The oil is then projected by the gas blast through slot 32 to form a screen through which the incoming air passes. Some of the oil gravitates back over the end 26 of the wall 25. Some is carried up with the air and part lodges against the walls at the turns. Finally the remaining air and what oil is carried thereby passes into the filter medium l8 lodging therein and gravitating to the plates [3 and I5 and from there to the sump cup 8.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is:

1. In an air cleansing device of the class described, a casing including an oil cup, an absorbent containing chamber above the oil cup and a clean air outlet communicating with said chamber, an exhaust gas conducting tube having a portion immersed in the oil in said cup and an atmospheric air intake and oil screen chamber in said casing having its lower portion associated with said exhaust tube and bounded by the oil in said cup.

2. In an air cleansing device of the class described, a casing comprising a vertically elongated open ended cylinder constituting the body portion, a removable cap for the upper end of said cylinder including a clean air outlet, an oil containing cup telescopically fitted on the lower end of said cylinder, a pivoted retaining bail carried by said cylinder and having its bight por tion cooperable with said cup for maintaining the cup in position, said cup being adapted to contain a predetermined quantity of oil, an oil heatingand elevating tube carried by said cylinder and having its discharge end immersed in the oil in said cup, and an atmospheric air intake and oil screen chamber supported in said cylinder and having its lower end portion cooperable with said tube and bounded by the oil in said cup.

3. In an air cleansing device of the class described, a substantially cylindrical casing provided at its bottom with an oil containing cup and provided at its top with an absorbent chamber filled with absorbent material, and further provided at its top with a clean air'outlet communicating with said chamber, a substantially rectangular hollow box-like air intake and oil screen chamber in the intermediate portion of said casing, the side walls thereof being spaced from the side walls of the casing, and an oil heating tube carried by said casing and communicating with said cup.

4. In an air cleansing device, a casing including an oil sump, a spray tube disposed in said sump in position so as to extend into the oil in said sump and adapted to be connected to a motive gas supply, an oil screen and air conducting chamber communicating with said sump adjacent said spray tube whereby an oil spray is created and maintained in said chamber by said spray tube, said spray tube being located at the inlet end of said chamber and means to collect the oil from the air passing from said chamber, said means communicating with said sump for the return by gravity of the oil collected to said sump.

5. In an air cleansing device, a casing including an oil sump, a spray tube disposed in said sump in position so as to extend into the oil in said sump and adapted to be connected to a motive gas supply, an oil screen and air conducting chamber communicating with said sump adjacent said spray tube whereby an oil spray is created and maintained in said chamber by said spray tube, said spray tube being located at the inlet end of said chamber, said chamber being tortuous whereby a stream of air is caused to make turns whereby entrained oil and solid particles are caused to be separated by the action of inertia and be deposited on the walls of said chamber.

6. In an air cleansing device, a casing including an oil sump, a spray tube disposed in said sump in position so as to extend into the oil in said sump and adapted to be connected to a motive gas supply, an oil screen and air conducting chamber communicating with said sump adjacent said spray tube whereby an oil spray is created and maintained in said chamber by said spray tube, said spray tube being located at the inlet end of said chamber, said chamber being tortuous whereby a stream of air is caused to make turns whereby entrained oil and solid particles are caused to be separated by the action of inertia and be deposited on the walls of said chamber, and means to collect the oil from the air passing from said chamber and communicating with said sump for the return by gravity ofthe oil collected to said sump.

7. In an air cleansing device, an upright elongated casing including an oil sump at the bottom, a spray tube disposed in said sump in position to extend into the oil in said sump and adaptarated from the air by inertia and to be deposited on said walls to return by gravity to said sump.

8. In an air cleansing device, an upright elongated casing including an oil sump at the bottom, a spray tube disposed in said sump in position to extend into the oil in said sump and adapted to be connected to a motive gas supply, walls extending upwardly from said sump defining a tortuous passage and providing an oil screen and separating chamber, said spray tube being located adjacent the inlet of said passage to project an oil screen spray across the stream of air entering said passage, said passage being in free communication with said sump whereby the stream of air is caused to make turns which causes entrained oil and solid particles to be separated from the air by inertia and to be deposited on said walls to gravitatively return to said sump, and a filter means to collect the oil from the air passing from said passage and communicating with said sump to return by gravity the oil collected thereby.

9. In an air cleansing device, an upright elongated casing including an oil sump at the bottom, a spray tube disposed in position extending into said sump and adapted to be connected to a motive gas supply, walls extending upwardly from said sump defining a tortuous passage and providing an oil screen and separating chamber, said spray tube being located adjacent the inlet of said passage to project an oil screen spray across the stream of air entering said passage,

said passage being in free communication with said sump whereby the stream of air is caused to make turns which causes oil and solid particles to be separated from the air by inertia and to be deposited on said walls, said passage walls including a rear wall curving upwardly from the front at the lower end and with a return curve at the top and a front wall having at its bottom an offset continuing curve in relation to the top curved section of said rear wall whereby oil collected thereon will gravitate to said sump.

10. In an air cleansing device, an upright elongated casing including an oil sump at the hottom, a spray tube disposed in position extending into said sump and adapted to be connected to a motive gas supply, walls extending upwardly from said sump defining a tortuous passage and providing an oil screen and separating chamber, said spray tube being located adjacent the inlet of said passage to project an oil screen spray across the stream of air entering said passage, said passage being in free communication with said sump whereby the stream of air is caused to make turns which causes oil and solid particles to be separated from the air by inertia and to be deposited on said walls, said passage walls including a rear wall curving upwardly from the front at the lower end and with a return curve at the top and a front wall having at its bottom an offset continuing curve in relation to the top curved section of said rear wall whereby oil collected thereon will gravitate to said sump, and an oil filter above said chamber including oil collecting baflles supporting a porous material, said baffles communicating with said sump to return oil thereto.

11. In an air cleaner, a. casing having an air inlet and an air outlet, means in said casing arranged to form a curved path for incoming air, said casing being arranged to contain a liquid with the level thereof above the bottom of said path, and means disposed in said casing below the level of said liquid for releasing a motive gas under pressure into direct contact with said liquid to elevate said liquid in a spray across said air path.

12. In an air cleaning device, a casing having an air inlet and an air outlet, means in said casing forming a continuation of said inlet and defining a curved path for incoming air, said casinghaving an oil sump therein with the oil level above the lower part of said path whereby incoming air will strike said oil, and means in said casing extending transversely to said path arranged to discharge a otive gas directly into said oil throwing oil from sa d sump across said path.

13. In an air cleaning device, a casing having an air inlet and an outlet for cleaned air spaced from said inlet, partition means in said casing defining a path for incoming air, said means having an opening therein, said casing being arranged to contain a cleaning liquid with the level thereof above said opening, means for releasing a hot motive gas below said opening and below the level of said liquid, to throw said liquid across said path, and means in advance of said outlet for removing entrained liquid from outgoing air.

14. An air cleaner comprisinga housing, provided in its upperportion with a cleansed air outlet and in the lower portion of its side wall with an air inlet, an open bottomed hollow member located within the lower portion of said housing and connected at one end to said air inlet, said hollow member being provided with an outlet, a perforated exhaust gas supply pipe extending into the lower portion of the housing and through the lower portion of the hollow member therein and a filtering body contained within the upper portion of said housing.

HERMAN B. ANGLEMEYER.

- carcinoma or CORRECTION.

Patent No. 1,996,604. Aoril 2, 1935. HERMAN B. ANGLEMEYER, ET AL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 3, second column, line 42, claim 12, for "throwing" read throw; and that the said'Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent 0ft ice.

Signed and sealed this 28th day of May, A. D. 1935.

Les i ie Frazer (Seal Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,996,604. April 2. I935.

HERMAN B. ANGLEMEYER.

It is hereby certified that Certificate 'of Correction ismed May 28th was erroneously drawn as to the word "throw" and that this Certificate should read as follows: Page 3, second column, line 42, claim 12, for "throwing" read to throw; and that the said Certificate should be read With this correction therein that the same may conform to the records of the Patent Office.

Signed and sealed this 16th day of July, A. D. 1935.

Leslie Frazer (Seal) Acting Commissioner of Patents. 

